Both FRP and GRP are lightweight, strong, and durable, making them excellent substitutes for heavy metals and cement in applications like cooling towers, fans, and pipelines. These plastics, reinforced with fiberglass and its fabrics, are not only light and hard but also non-conductive, mechanically strong, and corrosion-resistant. This makes them ideal for replacing steel in manufacturing machine parts, as well as in automobile and ship exteriors. Depending on the resin type used, these materials are further classified as polyester FRP, epoxy FRP, and phenolic FRP.